The lysocline is the point where there is a dramatic decrease (up to 90%) in the amount of calcite structures present, but below this exists the CCD. The Pacific has a lower pH and is colder than the ...The lysocline is the point where there is a dramatic decrease (up to 90%) in the amount of calcite structures present, but below this exists the CCD. The Pacific has a lower pH and is colder than the Atlantic, so its lysocline and CCD are higher in the water column because the solubility of calcite increases in these conditions. By increasing the amount of \(\ce{CO2}\) in the atmosphere we have also increased the amount of \(\ce{CO2}\) in the ocean.
Pericontinental seas mark the transition from the continents to the open oceans. Environments include the shelf (dominated by storm waves and tides on its landward side and suspension deposition on i...Pericontinental seas mark the transition from the continents to the open oceans. Environments include the shelf (dominated by storm waves and tides on its landward side and suspension deposition on its seaward side), the relatively steep continental slope (dominated by suspension deposition, slumping, and turbidite generation), the continental rise (dominated by turbidite deposition), and the abyssal plain (dominated by suspension deposition of mud, calcareous oozes, and siliceous oozes).